EV Site and Server Alias Question

Hi,

I'm confused with EV Site and Server Alias Question. Please anyone can clarify this?

We want to install two EV Server. "EV1" and "EV2"

Now we have two alias for each EV Server "EVA1" pointing to "EV1" and "EVA2" pointing to "EV2"

We have one site Alias "EV"

Now during the first EV Server setup the configuration Wizard says "Enter computer alias: "

Which one should we use here? "EV" or "EVA1" ?

What should we use for 2nd EV Server Setup "EVA2" ?

Many Thanks